Snow water equivalent dynamics in the Yesil water management basin

The article presents the snow water equivalent (SWE) dynamics in the Yesil Water Management Basin during 1971-2019. The main research purpose was to study the SWE dynamics, since – being a powerful climate-forming factor – snow cover plays an important role in climatic, hydrological, and glaciologic...

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Main Author: Tillakarim Т.А
Format: Article
Language:English
Published: Kazakh German University 2023-07-01
Series:Central Asian Journal of Water Research
Subjects:
Online Access:https://water-ca.org/article/snow-water-equivalent-dynamics-in-the-yesil-water-management-basin-en-2
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author Tillakarim Т.А
author_facet Tillakarim Т.А
author_sort Tillakarim Т.А
collection DOAJ
description The article presents the snow water equivalent (SWE) dynamics in the Yesil Water Management Basin during 1971-2019. The main research purpose was to study the SWE dynamics, since – being a powerful climate-forming factor – snow cover plays an important role in climatic, hydrological, and glaciological processes. The analysis was carried out using mathematical statistics methods, specifically comparing the mean long-term values for two consecutive periods (baseline 1971-1995 and modern 1996-2019); the method of time series linear approximation and the Mann-Kendall method were applied to determine the trend of change. The study used the decadal maximum SWE data of 24 meteorological stations in the target basin. The research revealed that over a long period of time the SWE ranged from 38 mm (Chkalovo Station) to 146 mm (Balkashino Station); pointed to later periods of accumulation and earlier periods of complete stagnation during the modern period against the baseline; as well as detected cyclical fluctuations during various SWE anomaly periods in the first approximation. The SWE dynamics over two consecutive periods and the outcomes of linear approximation and Mann-Kendall analysis indicate statistically significant changes in water reserves at the Zhaksy, Ruzayevka, Saumalkol, Vozvyshenka Stations, and statistically insignificant changes at other stations.
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spelling doaj.art-2427a21de59643f19e147f152979ba142023-11-04T12:03:10ZengKazakh German UniversityCentral Asian Journal of Water Research2522-90602023-07-0192116https://doi.org/10.29258/CAJWR/2023-R1.v9-2/1-16.rusSnow water equivalent dynamics in the Yesil water management basinTillakarim Т.А0https://orcid.org/0000-0002-8688-7399Al-Farabi Kazakh National University, 71 Al-Farabi Ave., Almaty, KazakhstanThe article presents the snow water equivalent (SWE) dynamics in the Yesil Water Management Basin during 1971-2019. The main research purpose was to study the SWE dynamics, since – being a powerful climate-forming factor – snow cover plays an important role in climatic, hydrological, and glaciological processes. The analysis was carried out using mathematical statistics methods, specifically comparing the mean long-term values for two consecutive periods (baseline 1971-1995 and modern 1996-2019); the method of time series linear approximation and the Mann-Kendall method were applied to determine the trend of change. The study used the decadal maximum SWE data of 24 meteorological stations in the target basin. The research revealed that over a long period of time the SWE ranged from 38 mm (Chkalovo Station) to 146 mm (Balkashino Station); pointed to later periods of accumulation and earlier periods of complete stagnation during the modern period against the baseline; as well as detected cyclical fluctuations during various SWE anomaly periods in the first approximation. The SWE dynamics over two consecutive periods and the outcomes of linear approximation and Mann-Kendall analysis indicate statistically significant changes in water reserves at the Zhaksy, Ruzayevka, Saumalkol, Vozvyshenka Stations, and statistically insignificant changes at other stations.https://water-ca.org/article/snow-water-equivalent-dynamics-in-the-yesil-water-management-basin-en-2comparison analysiskazakhstanlinear approximationmann-kendall trend testsnow water equivalent (swe)
spellingShingle Tillakarim Т.А
Snow water equivalent dynamics in the Yesil water management basin
Central Asian Journal of Water Research
comparison analysis
kazakhstan
linear approximation
mann-kendall trend test
snow water equivalent (swe)
title Snow water equivalent dynamics in the Yesil water management basin
title_full Snow water equivalent dynamics in the Yesil water management basin
title_fullStr Snow water equivalent dynamics in the Yesil water management basin
title_full_unstemmed Snow water equivalent dynamics in the Yesil water management basin
title_short Snow water equivalent dynamics in the Yesil water management basin
title_sort snow water equivalent dynamics in the yesil water management basin
topic comparison analysis
kazakhstan
linear approximation
mann-kendall trend test
snow water equivalent (swe)
url https://water-ca.org/article/snow-water-equivalent-dynamics-in-the-yesil-water-management-basin-en-2
work_keys_str_mv AT tillakarimta snowwaterequivalentdynamicsintheyesilwatermanagementbasin